Home / 30,544,965,805.44-42,171,419,374.20-20,915,809,357.92

Finding the Fourth Proportional to 30,544,965,805.44, 42,171,419,374.20 and 20,915,809,357.92

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Solution

The fourth proportional to 30,544,965,805.44, 42,171,419,374.20 and 20,915,809,357.92 is: 28,877,078,259.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,544,965,805.44 : 42,171,419,374.20 = 20,915,809,357.92 : x
  2. Step 2: Convert to fraction form
    30,544,965,805.44/42,171,419,374.20 = 20,915,809,357.92/x
  3. Step 3: Cross multiply
    30,544,965,805.44x = 42,171,419,374.20 × 20,915,809,357.92
  4. Step 4: Simplify right side
    30,544,965,805.44x = 882,049,367,983,660,990,464
  5. Step 5: Solve for x
    x = 882,049,367,983,660,990,464/30,544,965,805.44
  6. Step 6: Final answer
    x = 28,877,078,259.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.